The NetOp Upgrade Insurance program is a software maintenance offer that helps your organization leverage your NetOp software investment through a broad range of benefits. From free technical support to free software upgrades and license management, the NUI program will help you increase your organizations productivity and performance, and improve your NetOp software return on investment.. The NUI program ensures your access to the latest technical developments in the NetOp products and provides you with priority ranking on your free and unlimited technical support.